Check your MAS sensor, I had problems with that, once in a while it would be a dog when I started to go but then it would grab and go. It was covered with crud. I'm still having a momentary problem on cold starts. Thirty seconds after I start it stumbles a little. I'm going to clean the IAC next. My 4.0L zips along pretty good when everything is warmed up.

Check your MAS sensor, I had problems with that, once in a while it would be a dog when I started to go but then it would grab and go. It was covered with crud. I'm still having a momentary problem on cold starts. Thirty seconds after I start it stumbles a little. I'm going to clean the IAC next. My 4.0L zips along pretty good when everything is warmed up.

He has a 3.0.. It's a boat anchor to begin with. His best bet is to slam harder on the skinny pedal.